BMW X5: Oil Sump
REMOVING AND INSTALLING, SEALING OR REPLACING OIL SUMP (N52K)
IMPORTANT: Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts exclusively.
Aluminium screws/bolts must be replaced each time they are released.
The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.
Jointing torque and angle of rotation must be observed without fail.
Risk of damage!
Necessary preliminary tasks:
- Lower front axle
- Remove front differential
Release screw (1) from grounding cable (2) on right bearing block (3).
Lay grounding cable (2) to one side.
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Fig. 52: Grounding Cable, Bearing Block And Screw
NOTE: Picture shows an E92 by way of example. Other model series may differ in certain details.
Unclip electric leads (2) of oxygen monitor sensors from holder (3).
Disconnect plug connections (1) of oxygen monitor sensors and lay to one side.
Release bolts (5) on transmission.
Tightening torque: 11 13 5AZ.
Disconnect plug connection (4) on oil level sensor.
Lay holder (3) to one side.
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Fig. 53: Plug Connections, Holder, Electric Leads And Bolts
For vehicles with optional extra SA205 (automatic transmission):
NOTE: Transmission fluid cooler lines (2) (supply and return) are secured to the oil sump with two holders (3).
If necessary, release oil pump and lay to one side.
Unscrew nuts (1).
Tightening torque: 11 13 6AZ.
Release holders (3) with transmission fluid cooler lines (2) from oil sump guides.
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Fig. 54: Fluid Cooler Lines, Holders And Nuts
For all vehicles:
NOTE: For purposes of clarity, the picture shows the front axle carrier and stabilizer bar removed.
Unscrew nut (3).
Tightening torque: 11 13 7AZ.
Release screw (2).
Tightening torque: 11 13 8AZ.
Release both holders with coolant hose (1) from oil sump guide.
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Fig. 55: Coolant Hose, Screw And Nut
IMPORTANT: Bolts of oil sump have different lengths.
Observe different tightening torques.
Release bolts along line (1).
Tightening torque: 11 13 2AZ.
Tightening torque: 11 13 3AZ.
Installation:
Replace aluminium screws.
If necessary, remove oil level sensor (2) and right bearing block (3).
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Fig. 56: Oil Level Sensor And Bearing Block
IMPORTANT: There must be no adhesive residues in the bedplate retaining threads.
Clean retaining threads.
Installation:
Replace all seals.
Assemble engine.
READ NEXT:
Replacing Front Crankshaft Radial Seal (N52K)
Special tools required:
11 9 221
11 9 222
11 9 223
11 9 224
11 9 231
11 9 232
11 9 233
Necessary preliminary tasks:
Remove vibration damper
IMPORTANT: Do not release central bolt.
If the
Replacing Sealing Cover For Vacuum Pump (N52K)
Special tools required:
11 4 361
11 4 362
11 4 363
11 4 364
11 9 200
Necessary preliminary tasks:
Remove fan cowl with electric fan
Remove alternator drive belt
Remove drive belt tensioner
SEE MORE:
Adjusting Parking Brake
The parking brake test must be carried out on the roller dynamometer as
follows.
Release position (engine off / ignition on ):
Wheel circumferential force right / left < or = 300 N.
Press parking brake button (engine off / ignition on ):
Car must be pulled uniformly out of brake roller or d
Emissions Management
The N54 and N52KP meet ULEV II requirements for 2007. There are not many
changes to the emission
systems on these engines. The N54 engine has 2 underbody catalysts in addition
to the "near engine" catalysts
already in use from the N52.
The N51 engine, however, is a SULEV II compliant engine which
